LSU Researchers Offer Insights on Sleep and Health

Dr. Prachi Singh, an associate professor and director of the Sleep and Cardiometabolic Health Lab at Pennington Biomedical Research Center, highlighted that sleep affects a range of health issues. She noted that small changes in daily habits can improve sleep quality, such as maintaining a consistent bedtime, reducing screen time before sleep, and engaging in relaxing activities like bathing or meditation. Singh is also researching lifestyle changes that enhance sleep and investigating a peptide called Pep19, which may improve sleep quality and assist in fat loss, emphasizing the connection between sleep, metabolic health, and inflammation.

Singh indicated that interventions reducing visceral fat could improve sleep quality by tackling chronic inflammation and insulin resistance, which disrupt sleep. According to her, inadequate sleep creates a cycle that increases appetite and leads to weight gain and health risks. She underscored the importance of integrated approaches to improve both sleep and metabolic health in combating obesity, referencing her recent study in the journal Diabetes Metabolism Research & Reviews.

Alyssa Johnson, an associate professor in the LSU College of Science, connected sleep to critical health outcomes, noting that chronic sleep deprivation risks heart disease, metabolic disorders, and dementia. She stated that most individuals require 7-8 hours of sleep, but a few can function on significantly less due to rare genetic mutations, like those in the DEC2 and SIK3 genes. These so-called “natural short sleepers” can sleep 4-5 hours without adverse health effects.

Johnson’s research involves genetically engineered fruit flies to study these sleep mutations. The findings revealed that these flies, with mutations in the dec2 gene, required less sleep but also exhibited longer lifespans and enhanced mitochondrial function. She proposed that understanding these mechanisms might help develop treatments for sleep disorders and contribute to healthy aging.

Both researchers’ findings suggest that sleep needs are not universal; they may be significantly influenced by genetic factors.